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DC Generators

DC Generators
In case of dc machines, mechanical losses are primary function of

Current
None of the listed here
Voltage
Speed

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DC Generators
In a four-pole D.C. machine

Alternate poles are north and south
All the four poles are north poles
All the four poles are south poles
Two north poles follow two south poles

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DC Generators
The essential condition for parallel operation of two D.C. generators is that they have

Same kW rating
The same drooping voltage characteristics
Same percentage regulation
The same operation r.p.m.

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DC Generators
In dc generator, the constant losses is equal to

Stray losses
Stray losses plus shunt cu loss
Mechanical losses
None of the listed here

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DC Generators
In D.C. generators, current to the external circuit from armature is given through

None of above
Commutator
Slip rings
Solid connection

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DC Generators
In dc generator, the generated voltage depend upon

Both speed and flux
Speed only
Flux only
None of the listed here

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